Building the Product

My MVP needs users to log in, pay, and get notifications. Should I build auth, payments, and email myself or glue together no-code and third-party tools?

A starting point

For a first MVP, buy or borrow everything that isn't the thing you're testing. Auth (Firebase, Clerk, Supabase), payments (Razorpay, Stripe), and email (Resend, Postmark) are solved problems, and hand-rolling them just burns weeks you should spend on the one risky bet. The rule of thumb: build only the code that would embarrass you to admit a competitor also has. This is a starting point, revisit once you have real load and real reasons to own a piece.

Go deeper

Hand-picked from around the web, each with a note on why it earns your time.

3 resources 3 link-checked Watch Read Use

Watch

▶️ Video
✓ Link checked Free Beginner

Why we picked it This walks through wiring up real login (sign up, sign in, email verification, protected pages, user profile) with Clerk in under an hour, which shows just how fast auth can be assembled instead of built. Watching it makes the tradeoff concrete: what you might have spent weeks building is a provider plus a few components. Clerk is one option here, not the only one, but the point is transferable to any hosted auth you choose.

Simple Next.js & React Authentication With Clerk

On YouTube (Traversy Media) by Traversy Media About 50 minutes

Simple Next.js & React Authentication With Clerk
  • A full login flow (sign up, verification, protected routes, profile) comes together in one sitting when you use a hosted auth provider.
  • Pre-built components handle the parts of auth that are genuinely hard to get right, like verification and session handling.
  • Seeing the speed firsthand is the honest gut check on whether building your own auth is worth the weeks it would cost.
Watch on YouTube youtube.com →

Read

📄 Article
✓ Link checked Free Beginner

Why we picked it This is the cleanest framing of the exact call you are making: which parts of your product are your actual reason to exist, and which are solved problems you should assemble rather than build. It argues that auth, payments, and notifications are commodity infrastructure where rolling your own mostly just delays your MVP. Treat it as a starting point for the decision, not a rule, since a few products do have a real reason to own one of these layers.

The Three Things to Never Build In Your App: Authentication, Notifications, and Payments

From Courier by Tejas Kumthekar About a 10 minute read

  • Auth, payments, and notifications are solved problems, so building them yourself usually costs you launch time you cannot get back.
  • Your build effort should go into what makes you different, not the plumbing every app needs.
  • The author says outsourcing these three would have shortened his own MVP timeline significantly, which is the honest lived version of the argument.
Open courier.com →

Use

🛠️ Tool
✓ Link checked India Freemium Beginner

Why we picked it For a founder in India collecting money in INR, Razorpay is the default payments stack, and this is the official developer documentation with a sandbox you can test in before touching real money. It covers UPI, cards, netbanking, wallets, subscriptions, and payment links from a single integration, which is most of what an early product needs. This is the assemble, do not build answer for the payments part of your question.

Razorpay Developer Documentation

From Razorpay by Razorpay Reference docs, dip in as needed

  • Razorpay handles every payment method Indian users expect (UPI, RuPay/Visa/Mastercard cards, netbanking, wallets) on one integration.
  • There is a free sandbox and test keys, so you can wire up and verify the full flow before spending a rupee.
  • Subscriptions and payment links exist out of the box, so recurring billing is not a from-scratch project.
Open razorpay.com →

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